Explosive-mixture-supply control device for internal-combustion engines



Feb. 2 1926.

M. J. GOLDBERG EXPLOSIVE MIXTURE SUPPLY (YONTROL DEVICE FOR INTERNAL COIBUS TION ENGINES Filed April 2-. 1920 h I m I ATTORN R In Patented Feb. 2, 1926.

UNITED STATEfi PATENT OFFICE.

MEYER J. GOLDBERG, OF MUSKEGON, MICHIGAN, ASSIGNOR, .BY MESNE ASSIGNMENTS,

TO THE MAXIMOTOR COMPANY, OF MUSKEGON HEIGHTS, MICHIGAN, A CORPORA- TION OF MICHIGAN.

EXPLOSIVE-MIXTURE-S'UPPLY CONTROL DEVICE FOR INTERNAL-COMBUSTION ENGINES.

Application filed. April 2, 1920. Serial No. 370,844.

To all whom it may concern:

Be it known that I, MEYER J. GOLDBERG, formerly a subject of the Czar of Russia, but who have declared my intention to become av citizen of the United States and have taken out my first naturalization papers, and who resides at Muskegon, county of Muskegon, State of Michigan, have made a certain new and useful Invention in Explosive-MixtureSupply Control Devices for Internal-Combustion Engines. of which the following is a specification.

This invention relates to devices for controlling the supply of the explosive mixture to internal combustion engines.

The object of the invention is to provide devices of the nature referred to which are simple in structure, ecomomical to manufacture, and efficient in operation.

A further object is to provide in devices of the nature referred to means which are (i-perated by the speed of the engine but in which the power required to be exerted by the speed operated means is reduced to a minimum.

A further object is to provide an explosive mixture supply controlling device wherein the area of throttle opening is rapidly increased in proportion to the range of opening movements of the device, and the area of throttle closing is likewise and corrcspoudingly diminished in proportion to the range of closing movement of the device.

Other objects of the invention will appear more fully hereinafter.

The invention consists substantially in the construction, combination. location and relative arrangement of parts, all as will be more fully hereinafter set forth, as shown in the accompanying drawing, and finally pointed out in the appended claims.

In the drawings l is a view in side elevation of an internal combustion motor showing the application thereto of an explosive charge supply controlling mechanism embodying the principles of my invention.

Fig. 2 is a front end elevation of the charge supply controlling nozzle.

Fig. 3 is a detached broken detail View in central section taken longitudinally of the nozzle on the line 3, 3, Fig. 2.

Referring to the drawing, reference numeral 4- designates an explosive motor which. may be of any desired type, and 5 isa rod which is adapted to be moved longitudinally through a range of movement dependent upon the speed of the engine. For example this rod may be actuated by a governor (not shown) driven by the engine. This rod extends freely into one end of a nozzle which is formed with a cylindrical bore 6, said rod being connected to a piston member 7, fitted to slide in the cylindrical bore. Communicating with the bore 6 is a passage 8 which constitutes the explosive charge connection to the engine cylinder, the function of the piston '7 being to throttle the communication between the bore 6 of the nozzle and the cylinder connection 8, mlore or less, according to the speed of the engine. The piston T is formed with a \l-shaped recess 20 in the outer end thereof, the apex of said recess being presented towards the engine and the widest part towards the front end of the nozzle. The nozzle is formed with a central portion 9, in line with the cylindrical bore (5 but of more restricted area in transverse section. Communicating laterally with this restricted central portion 9 is a supply connection 10 for the fuel oil, gasoline or the like, from a suitable supply tank. Extending transversely across the restricted chan nel 9, and tapped through the wall of said channel, in line with the oil supply connection 10, is a needle valve 11, to control the area of opening of the oil supply connection into the channel 9, and hence the amount of oil supply.

The nozzle is flared or bell-shaped at its forward end, as shown at 12, this flared portion being in line with the portions 9 and 6 of the nozzle. The forward extremity of the flared portion 12 is open to the outer air except for a disk valve 13 which is normally held seated against a ring 14, attached against the end of the nozzle, by means of a light spring 15 interposed between the disk valve 13 and a nut 16 on a rod 17 carried by a cross strut or member 18 of the ring 14.

The operation of the device is as follows :On the suction stroke of the engine, the valve disk 13 is unseated and air is drawn into the nozzle and through the restricted portion 9, and into the portion 21 of the bore 6 and thence through the vnotch 20 in the piston 7, into passage 8, and on into the cylinder. At the same time a jet of oil, gasoline or the like is drawn through the connection 10 in an amount determined by the setting of the needle valve 11. This fuel material is thus jetted transversely across the air current, and is carried along with the air through the restricted portion 9 and into the portion 21 oi the bore 6, which thus constitutes a mixing chamber, and thence on into the cylinder through the vnotch 20 and connection 28. Under the influence of the speed the engine the piston 7 is shifted longitudinally more or less according to the engine speed, thereby more or less throttling the comn'iunication to the cylinder. By reason of the V-shape ot the notch 20, disposed as above described, and as shown, it will be seen that the area of opening of the communication between the mixing chamber 21 and the cylinder connection 8 is increased or decreased, according to the direction of movement oi? the pis at an acceleration or rate which varies rapidly in proportion to the range of movement per unit of time of the piston '7.

It will also be seen that the piston thus constitutes, in effect, a piston valve, and that said valve is balanced since it is subjected on the opposite faces thereof to atmospheric pressure. Consequently the governor or other speed actuated mechanism which moves said valve is required to pertorn'i but very little Work in shifting the balanced piston valve.

In the use or an explosive charge supply controlling mechanism such as above described, 1 am enabled to secure quick response in the supply control of the explosive charge to the cylinder to speed variations in the engine, thereby securing a remarkably steady speed at the rate for which the engine is adjusted. The structure is exceedingly simple, is easily assembled, has few parts to get out of order and when once applied and adjusted requires no special attention. it is also strong therefore not liable to get reason of delicately constructed or mounted parts.

Having now set forth the objects and nature of my invention and a construction embodying the principles thereof, What I claim as new and useful and of my own in vention and desire to secure by Letters Patent is 1. In an apparatus of the character described, a flared nozzle having a pas age therethrough in communication with the cylinder of an engine, and air inlet and an oil inlet into said passage, a spring valve on the outer end oi said nozzle, and a balanced piston valve actuated according to the speed of the engine for controlling said cylinder communication, said piston valve having a ll-shaped recess in its end surface.

2. The combination with a nozzle having a longitudinal passage thcrethrough, a suction operated valve controlled opening to the outer air at one end, an oil supply con nection delivering transversely intermediate its ends, a. regulating oevice extending into said passage and a cylinder connection, of a balanced piston valve Working in the other end of said passage and actuated according to the speed of the engine, for controlling said cylinder connection.

3. The combination with a nozzle having a longitudinal passage therethrh, a suction operated valve controlled opening to the outer air at one end, an oil supply connection intern'iediate its ends for delivering fuel at right-angles to said passage, and a cylinder connection, of a l'ialanced piston valve working in the other end of said pasand. actuated according to the speed of the engine, for controlling said cylinder connection, said piston valve having a V- shaped opening in one end thereof.

in testimony whereof I have hereunto set my hand on this 29th day of March A. D. 1920,

and rugged and MEYER J. GOLDBERG.

out of order by 

